Elon Musk’s plans refer to an idea conceived in the 1960s. What is the Kardashev scale?

A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...
Scientific American

Astronomers catch a ‘dark’ comet by the tail

A strange class of comet could explain the enigmatic behavior of ‘Oumuamua, the first known interstellar object—and even shed ...

NASA sent Curiosity to Mars in 2011 for a two-year mission, and almost 15 years later it still won’t quit

NASA's Curiosity rover was built for a 2-year Mars mission. Nearly 14 years later, it is still making history in Gale Crater.

UFOs Are a National Security Crisis: Why NASA Insiders Fear China and Russia Are Beating Us to UAP Technology

Former NASA official Michael Gold says decades of stigma around UFOs left the US lagging on UAP research and warns rivals ...